Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimization on Composite Admixture for Cemented Soil Based on Response Surface Methodology
To reduce cement usage and improve the engineering performances, sintered limestone ash, alkaline activator and polynaphthalene sulfonate were mixed to prepare composite admixtures for cemented soil. Based on the response surface theory, a series of composite admixtures were designed, the relationship between the admixture compatibility and the compressive strength of the modified cemented soil was analyzed. The results show that for cemented soil with 20% cement addition replaced by sintered limestone ash, the compressive strength growth after 1d is linear with the alkaline activator increment and is quadric with the polynaphthalene sulfonate increment, while the strength growth after 7d is quadric with both alkaline activator and polynaphthalene sulfonate increments. Meanwhile, the optimum admixture is composed of 0.87% alkaline activator and 1.31% polynaphthalene sulfonate.
Optimization on Composite Admixture for Cemented Soil Based on Response Surface Methodology
To reduce cement usage and improve the engineering performances, sintered limestone ash, alkaline activator and polynaphthalene sulfonate were mixed to prepare composite admixtures for cemented soil. Based on the response surface theory, a series of composite admixtures were designed, the relationship between the admixture compatibility and the compressive strength of the modified cemented soil was analyzed. The results show that for cemented soil with 20% cement addition replaced by sintered limestone ash, the compressive strength growth after 1d is linear with the alkaline activator increment and is quadric with the polynaphthalene sulfonate increment, while the strength growth after 7d is quadric with both alkaline activator and polynaphthalene sulfonate increments. Meanwhile, the optimum admixture is composed of 0.87% alkaline activator and 1.31% polynaphthalene sulfonate.
Optimization on Composite Admixture for Cemented Soil Based on Response Surface Methodology
Ge, Jinyu (Autor:in) / Xu, Fe (Autor:in) / Wei, Hua (Autor:in) / Han, Xuesong (Autor:in)
06.11.2021
1010626 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch